Title rated 4 out of 5 stars, based on 3 ratings(3 ratings)
Book, 2003
Current format, Book, 2003, , All copies in use.
Book, 2003
Current format, Book, 2003, , All copies in use. Offered in 0 more formats
Go on a journey that begins in small mountain streams and passes through large rivers to the ocean. Using the Columbia River Basin as an example, Life in a River examines the physical features, processes, and many different species of plants and animals that make up a unique river ecosystem. Find out about the impact of humans on this once-pristine ecosystem and what is being done to save it. Follow the river on its amazing journey and learn what makes it so special.
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